History of the community of planktonic Cladocera in Lake Glubokoe (Moscow Region)

A 128-centimeter sediment core of a forest lake in the Moscow Region, for which the recent zooplankton has been well studied, was analysed. The changes in the density and size of organisms in the core points to an important role of fish and interspecific competition in Cladocera and to a minor role of invertebrate predators in the historical development of the plankton. No substantial shifts in the lake trophy seem to have occurred during the last 600 years. A widely used technique of heating the sediment in a 10% KOH solution may account for 5–13-fold losses of planktonic cladocerans' remains.     

New semi-terrestrial chydorids from the tropical rainforest of southwest Cameroon (Africa): Nicsmirnovius camerounensis n.gen. n.sp. and Bryospilus africanus n.sp (Crustacea: Anomopoda)

Two new chydorids, Nicsmirnovius camerounensis (gen. nov., sp. nov.) and Bryospilus africanus n.sp. are described, based on material from Korup, Mundemba, Bakingili and Debunscha, all in the rainforests of southwest Cameroon. Morphological structures show that both taxa are only remotely related, and that, while Nicsmirnovius is clearly an alonine, Bryospilus might well be a chydorine chydorid. Small, taxonomically non-significant differences occurred among specimens of Bryospilus recorded in three different forest areas.     

A new species of Daphniopsis (Crustacea: Anomopoda: Daphniidae) from Australian salt lakes

A new species of the genus Daphniopsis found in Australian salt lakes is described and illustrated. A differential diagnosis and short taxonomic remarks are presented.